Rolls-Royce Archives
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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Graph showing hysteresis and eddy current losses in unwound and wound 24 slot armatures of a self-starter motor at 1500 R.P.M.

Identifier  ExFiles\Box 34\3\  Scan128
Date  15th May 1916 guessed
  
HYSTERESIS AND EDDY CURRENT LOSSES
IN 24 SLOT ARMATURES OF
R.R. SELF STARTER MOTOR AT 1500 R.P.M.
DRIVING MOTOR ARMATURE CURRENT (AMPERES)
STARTER MOTOR EXCITING CURRENT (AMPERES)
UNWOUND
WOUND
This ordinate represents Driving Motor Losses And Drive Losses And Bearing Friction And Windage Losses.
Hysteresis And Eddy Current Losses
LOSSES ARE OBTAINED IN WATTS BY MULTIPLYING SCALE AMPERES BY 78.5 VOLTS.
  
  


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